If your planning on adding a woofer to your boat in a storage box or under a
seat don't forget to add a vent so the bass can escape otherwise you just end up
with a rattle trap.

The MSG-S was designed originally to be used in conjunction with the Waves &
Wheels MS-R subwoofer enclosure but it can also be used in many other custom
subwoofer installations that require a vent. The silver vent panel measures 8" x
16" and can be installed onto slightly curved surfaces expanding the
possibilities. Each purchase includes 1 silver vent panel, mounting hardware and
instructions.